Willen
Well-Known Member
Ok I fixed input and used a capacitor at input and output live audio line to block DC.The compressor does not have input or output coupling capacitors so its DC voltages near 0V might mess up your signal source and amplifier.
Now you wrongly show the (+) input connected to ground and the "Common" as a (+) input.
When the wiring is fixed then the (+) input and output can be the live audio signals and the commons are the shielded grounds of their cables.
Your SMPS probably is noisy but its different voltages will not matter.
- Can you assume correct value of the capacitor? I have 100nF film, 0.33uF and 2.2uF polarized tantalum. Polarized is not good but I will measure voltage across the cap and will fixed polarity.
- Another: PC has Mic in and has 3 pins- L, R and Gnd. Most of the time people record audio by shorting L and R. So PC gets same audio to L and same audio to R. Now the compressor has (+) out and (-) out. Is it better to use these (+) and (-) as L and R input to the PC? Or has no benefit? (If it improves nothing then I will use (+) audio for L and R (shorting L and R input of PC) as I said above.